Abstract

Organic nanostructures made from organic molecules such as para-hexaphenylene (p-6P) could form nanoscale components in future electronic and optoelectronic devices.
However, the integration of such fragile nanostructures with the necessary interface
circuitry such as metal electrodes for electrical connection continues to be a significant
hindrance toward their large-scale implementation. Here, we demonstrate in situ–directed
growth of such organic nanostructures between pre-fabricated contacts, which are source–drain
gold electrodes on a transistor platform (bottom-gate) on silicon dioxide patterned
by a combination of optical lithography and electron beam lithography. The dimensions
of the gold electrodes strongly influence the morphology of the resulting structures
leading to notably different electrical properties. The ability to control such nanofiber
or nanoflake growth opens the possibility for large-scale optoelectronic device fabrication.